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    <p>I'm assuming with your <code>.InvokeRequired</code>/<code>Invoke(...)</code> code that you are using WinForms and not WPF.</p> <p><code>BackgroundWorker</code> will call the <code>ProgressChanged</code> and <code>RunWorkerCompleted</code> events on the main thread (assuming you created the worker on that thread). If you are adding items to your <code>ListBox</code> on either one of these events, you should not require the <code>Invoke()</code>.</p> <p>If you are going to be rapidly adding items to the <code>ListBox.Items</code> collection, I suggest you use <code>ListBox.BeginUpdate()</code> and <code>ListBox.EndUpdate()</code> which will temporarily suspend redrawing of the <code>ListBox</code> while you add items. This is useful when you are adding hundreds or thousands of items to the <code>ListBox</code> in mere seconds.</p> <p>For example:</p> <pre><code>void ReloadListBox() { listBox.BeginUpdate(); // Suspend redrawing listBox.Items.Clear(); // Remove all existing items first backgroundWorker.RunWorkerAsync(); // Asynchronous generate new items } void worker_ProgressChanged(object sender, ProgressChangedEventArgs e) { // Report a new list item in e.UserState. var newItem = e.UserState; listBox.Items.Add(newItem); } void worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) { // Alternatively, return a list of items in e.Result. var items = e.Result; listBox.Items.AddRange(items); listBox.EndUpdate(); // Resume redrawing and update } </code></pre>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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